root/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c

DEFINITIONS

1. brcmf_dmi_probe

   1 // SPDX-License-Identifier: ISC
   2 /*
   3  * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
   4  */
   5 
   6 #include <linux/dmi.h>
   7 #include <linux/mod_devicetable.h>
   8 #include "core.h"
   9 #include "common.h"
  10 #include "brcm_hw_ids.h"
  11 
  12 /* The DMI data never changes so we can use a static buf for this */
  13 static char dmi_board_type[128];
  14 
  15 struct brcmf_dmi_data {
  16         u32 chip;
  17         u32 chiprev;
  18         const char *board_type;
  19 };
  20 
  21 /* NOTE: Please keep all entries sorted alphabetically */
  22 
  23 static const struct brcmf_dmi_data acepc_t8_data = {
  24         BRCM_CC_4345_CHIP_ID, 6, "acepc-t8"
  25 };
  26 
  27 static const struct brcmf_dmi_data gpd_win_pocket_data = {
  28         BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
  29 };
  30 
  31 static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
  32         BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
  33 };
  34 
  35 static const struct brcmf_dmi_data meegopad_t08_data = {
  36         BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
  37 };
  38 
  39 static const struct brcmf_dmi_data pov_tab_p1006w_data = {
  40         BRCM_CC_43340_CHIP_ID, 2, "pov-tab-p1006w-data"
  41 };
  42 
  43 static const struct dmi_system_id dmi_platform_data[] = {
  44         {
  45                 /* ACEPC T8 Cherry Trail Z8350 mini PC */
  46                 .matches = {
  47                         DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
  48                         DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
  49                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
  50                         /* also match on somewhat unique bios-version */
  51                         DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
  52                 },
  53                 .driver_data = (void *)&acepc_t8_data,
  54         },
  55         {
  56                 /* ACEPC T11 Cherry Trail Z8350 mini PC, same wifi as the T8 */
  57                 .matches = {
  58                         DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
  59                         DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
  60                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
  61                         /* also match on somewhat unique bios-version */
  62                         DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
  63                 },
  64                 .driver_data = (void *)&acepc_t8_data,
  65         },
  66         {
  67                 /* Match for the GPDwin which unfortunately uses somewhat
  68                  * generic dmi strings, which is why we test for 4 strings.
  69                  * Comparing against 23 other byt/cht boards, board_vendor
  70                  * and board_name are unique to the GPDwin, where as only one
  71                  * other board has the same board_serial and 3 others have
  72                  * the same default product_name. Also the GPDwin is the
  73                  * only device to have both board_ and product_name not set.
  74                  */
  75                 .matches = {
  76                         DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
  77                         DMI_MATCH(DMI_BOARD_NAME, "Default string"),
  78                         DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
  79                         DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
  80                 },
  81                 .driver_data = (void *)&gpd_win_pocket_data,
  82         },
  83         {
  84                 /* Jumper EZpad mini3 */
  85                 .matches = {
  86                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
  87                         DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
  88                         /* jumperx.T87.KFBNEEA02 with the version-nr dropped */
  89                         DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
  90                 },
  91                 .driver_data = (void *)&jumper_ezpad_mini3_data,
  92         },
  93         {
  94                 /* Meegopad T08 */
  95                 .matches = {
  96                         DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
  97                         DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
  98                         DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
  99                         DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
 100                 },
 101                 .driver_data = (void *)&meegopad_t08_data,
 102         },
 103         {
 104                 /* Point of View TAB-P1006W-232 */
 105                 .matches = {
 106                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
 107                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
 108                         /* Note 105b is Foxcon's USB/PCI vendor id */
 109                         DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"),
 110                         DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
 111                 },
 112                 .driver_data = (void *)&pov_tab_p1006w_data,
 113         },
 114         {}
 115 };
 116 
 117 void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
 118 {
 119         const struct dmi_system_id *match;
 120         const struct brcmf_dmi_data *data;
 121         const char *sys_vendor;
 122         const char *product_name;
 123 
 124         /* Some models have DMI strings which are too generic, e.g.
 125          * "Default string", we use a quirk table for these.
 126          */
 127         for (match = dmi_first_match(dmi_platform_data);
 128              match;
 129              match = dmi_first_match(match + 1)) {
 130                 data = match->driver_data;
 131 
 132                 if (data->chip == chip && data->chiprev == chiprev) {
 133                         settings->board_type = data->board_type;
 134                         return;
 135                 }
 136         }
 137 
 138         /* Not found in the quirk-table, use sys_vendor-product_name */
 139         sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
 140         product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
 141         if (sys_vendor && product_name) {
 142                 snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
 143                          sys_vendor, product_name);
 144                 settings->board_type = dmi_board_type;
 145         }
 146 }